NEBOSH Study Guide 2026

The four Cs — Control, Cooperation, Communication, and Competence — represent the key elements needed to organise people effectively for health and safety management.

Regulation 5 requires that work equipment is maintained in an efficient state, in efficient working order, and in good repair. Where a maintenance log is required, it must be kept up to date. 'Efficient' here relates to health and safety efficiency, not productivity.

Regulation 4 of PUWER 1998 requires employers to ensure work equipment is suitable by design, construction or adaptation for the actual work it will be used for, considering the working conditions and health and safety risks.

Hot work permits are required whenever flames, sparks, or heat-generating tools are used in areas where flammable/combustible materials are present or may accumulate. The permit confirms: fire watch assigned, flammable materials removed/protected, fire suppression available, area checked post-work. Hot work is a major cause of construction fires in the Gulf.

The First-Aid Regulations require employers to provide adequate and appropriate equipment, facilities, and personnel so that employees can receive immediate attention if injured or taken ill at work. What is 'adequate and appropriate' depends on the nature of the work, workforce size, and site hazards.

Audiometry is a hearing test where the subject listens to pure tones at various frequencies through headphones in a quiet environment. The results are plotted on an audiogram showing hearing thresholds at each frequency. In occupational health surveillance, serial audiometry compares results over time to detect the characteristic 4 kHz dip of NIHL at an early stage when intervention (improved controls) can prevent further deterioration.